seagate st320005542as - No spin

[kilbert]

Hello again!
Thanks to fzabkar of this forum, I was able to salvage 2 drives! This drive is the last of them that got fried and is in the worst condition. I was hoping I can get same assistance trying to get this drive operational also. Again, I am doing this for the fun of it, and do not really care about the contents.

Please see my album http://imgur.com/a/Fz4iu

Appears the fuse (s) blew. 1 was just a drop of solder after the shorted power supply. It cleaned up very well, and the board and pad appear in good shape. The first image shows what I believe to be the fuses and their measurements. Any help is appreciated.

Thansk For your help!
Kilbert

[dmarques]

Best thing is to get another new PCB and swap ROM.

[fzabkar]

Remove the shorted diode, clean up the charred area with a toothbrush and isopropyl alcohol (audio/video head cleaner), and replace the burnt inductor with a wire link. Alternatively, run a separate wire from the +5V pins at the SATA power connector to the diode's anode pad on the PCB.

http://www.users.on.net/~fzabkar/HDD/ST ... AS_TVS.jpg

Here is how to add a wire to repair burnt inductors on the 12V circuit:
http://www.users.on.net/~fzabkar/HDD/ST ... S_wire.jpg

A similar fix would apply to the 5V circuit. The diode's anode (striped end) is identified with a "V" on the PCB.

[visz]

If I were you,I would follow fzabkar instructions

[fzabkar]

Remove the shorted diode, clean up the charred area with a toothbrush and isopropyl alcohol (audio/video head cleaner), and replace the burnt inductor with a wire link. Alternatively, run a separate wire from the +5V pins at the SATA power connector to the diode's anode pad on the PCB.

http://www.users.on.net/~fzabkar/HDD/ST ... AS_TVS.jpg

Here is how to add a wire to repair burnt inductors on the 12V circuit:
http://www.users.on.net/~fzabkar/HDD/ST ... S_wire.jpg

A similar fix would apply to the 5V circuit. The diode's anode (striped end) is identified with a "V" on the PCB.

Oops, that should be cathode, not anode. The striped "V" end is the correct pad, though.

[kilbert]

I can do that fzabkar, i just need to find some thin wire somewhere. Seems the faulty drive tray somehow cooked the 5v side of every drive on that leg of the supply. I feel even though this drive looks worse, It may have the same issue as the other 2. (the other 2 had blown 5v tvs and fuses). Having a fun time attempting these repairs. Will try this over the weekend.
Thank you all for the help.

[HaQue]

I can do that fzabkar, i just need to find some thin wire somewhere. .

Hi,
some great sources of thin wire are cables such as unwanted 5v or 12 wall adapters, USB cables etc. for a little thicker, SATA or IDE cables stripped down.. Just strip off the plastic and the strands come apart easily. you can get sizes like 38AWG to 40AWG this way.

Tip, clean the ends well, because dirty wire can be troublesome to soldr to.